Home / 20,511,039.20-30,766,558.80-8,372,533.10

Finding the Fourth Proportional to 20,511,039.20, 30,766,558.80 and 8,372,533.10

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Solution

The fourth proportional to 20,511,039.20, 30,766,558.80 and 8,372,533.10 is: 12,558,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511,039.20 : 30,766,558.80 = 8,372,533.10 : x
  2. Step 2: Convert to fraction form
    20,511,039.20/30,766,558.80 = 8,372,533.10/x
  3. Step 3: Cross multiply
    20,511,039.20x = 30,766,558.80 × 8,372,533.10
  4. Step 4: Simplify right side
    20,511,039.20x = 257,594,031,926,096.28
  5. Step 5: Solve for x
    x = 257,594,031,926,096.28/20,511,039.20
  6. Step 6: Final answer
    x = 12,558,799.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.